97211548078 has 4 divisors (see below), whose sum is σ = 145817322120. Its totient is φ = 48605774038.

The previous prime is 97211548051. The next prime is 97211548141. The reversal of 97211548078 is 87084511279.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24302887018 + ... + 24302887021.

It is an arithmetic number, because the mean of its divisors is an integer number (36454330530).

Almost surely, 2^97211548078 is an apocalyptic number.

97211548078 is a deficient number, since it is larger than the sum of its proper divisors (48605774042).

97211548078 is a wasteful number, since it uses less digits than its factorization.

97211548078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48605774041.

The product of its (nonzero) digits is 1128960, while the sum is 52.

The spelling of 97211548078 in words is "ninety-seven billion, two hundred eleven million, five hundred forty-eight thousand, seventy-eight".